Best AI Detection Software in 2026
Updated
In short: IA Checker is ranked #1 of 27 as of 4 October 2026, ahead of Originality.ai and ZeroTrue. The best-ranked option with a free plan is Originality.ai. The lowest first paid tier on this page is ScribeLens at $0.04/mo.
When reviewing text for possible AI generation, the material and your workflow can shape which detection software is worth considering. Check language coverage and word limits against the text you handle, then compare API access, browser extensions, and report export for how you want to use results. Grammarly, IA Checker, and ZeroTrue are among the options. Free-plan availability, paid-from pricing, and included team seats add access and collaboration details to weigh. Think about the languages and volume of text you review, and whether you need results that can be exported or incorporated into another workflow. These comparison points help clarify which listed capabilities fit your needs.
27 AI detection software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
Recognised 40% · Phone app 26% · Documented 20% · Free plan 14% of the score
- 1 IA Checker iPhone only RecognisedPhone appDocumentedFree plan 8.5€9.90/mo Word limit: 300,000 wordsLanguage coverage: multilingualAPI access: Yes
- 2 Originality.ai No phone app RecognisedPhone appDocumentedFree plan 8.1$12.95/mo Word limit: 10,000 wordsAPI access: Yes
- 3 ZeroTrue iPhone + Android RecognisedPhone appDocumentedFree plan 8.1Free Language coverage: multilingualAPI access: Yes
- 4 Pangram No phone app RecognisedPhone appDocumentedFree plan 7.9$1.67/mo Word limit: 300,000 wordsAPI access: Yes
- 5 ScribeLens No phone app RecognisedPhone appDocumentedFree plan 7.8$0.04/mo Word limit: 300,000 wordsAPI access: Yes
- 6 Winston AI No phone app RecognisedPhone appDocumentedFree plan 7.7$5/mo API access: Yes
- 7 Heynotai No phone app RecognisedPhone appDocumentedFree plan 7.6$8/mo API access: Yes
- 8 Grammarly iPhone + Android RecognisedPhone appDocumentedFree plan 7.6$12/mo
- 9 TraceGPT No phone app RecognisedPhone appDocumentedFree plan 7.1 Language coverage: multilingualAPI access: Yes
- 10 Sapling No phone app RecognisedPhone appDocumentedFree plan 7.0$5/mo
- 11 AI Detector Pro No phone app RecognisedPhone appDocumentedFree plan 6.8Free API access: Yes
- 12 Polygraf AI Detector No phone app RecognisedPhone appDocumentedFree plan 6.8$9.95/mo API access: Yes
- 13 Turnitin AI Writing Detection No phone app RecognisedPhone appDocumentedFree plan 6.7 API access: Yes
- 14 Undetectable AI No phone app RecognisedPhone appDocumentedFree plan 6.7$0.42/mo API access: Yes
- 15 Walter Writes AI iPhone + Android RecognisedPhone appDocumentedFree plan 6.6 Word limit: 30,000 wordsAPI access: Yes
- 16 Compilatio AI Detector No phone app RecognisedPhone appDocumentedFree plan 6.5 API access: Yes
- 17 Smodin AI Detector No phone app RecognisedPhone appDocumentedFree plan 6.4 API access: Yes
- 18 UncovAI AI Detector Extension No phone app RecognisedPhone appDocumentedFree plan 6.2€9.99/mo Language coverage: english_onlyAPI access: Yes
- 19 Airno No phone app RecognisedPhone appDocumentedFree plan 6.1 API access: Yes
- 20 Detecto No phone app RecognisedPhone appDocumentedFree plan 6.0
- 21 Trinka No phone app RecognisedPhone appDocumentedFree plan 6.0Free
- 22 AI Detect No phone app RecognisedPhone appDocumentedFree plan 5.5
- 23 TruthLens No phone app RecognisedPhone appDocumentedFree plan 5.3Free
- 24 Is It AI? No phone app RecognisedPhone appDocumentedFree plan 5.2 Language coverage: english_only
- 25 ClassGuard No phone app RecognisedPhone appDocumentedFree plan 5.1
Compare all 25 in a table
| # | App | Score | Free plan | From | Free plan | Paid from | Word limit | Language coverage |
|---|---|---|---|---|---|---|---|---|
| 1 | IA Checker | 8.5 | Free plan | €9.90/mo | Yes | — | 300,000 words | multilingual |
| 2 | Originality.ai | 8.1 | Free plan | $12.95/mo | Yes | 12.95 /mo | 10,000 words | — |
| 3 | ZeroTrue | 8.1 | Free plan | Free | Yes | — | — | multilingual |
| 4 | Pangram | 7.9 | Free plan | $1.67/mo | Yes | 20 /mo | 300,000 words | — |
| 5 | ScribeLens | 7.8 | Free plan | $0.04/mo | Yes | 9 /mo | 300,000 words | — |
| 6 | Winston AI | 7.7 | Free plan | $5/mo | No | 10 /mo | — | — |
| 7 | Heynotai | 7.6 | Free plan | $8/mo | Yes | 8 /mo | — | — |
| 8 | Grammarly | 7.6 | Free plan | $12/mo | Yes | — | — | — |
| 9 | TraceGPT | 7.1 | No | — | Yes | — | — | multilingual |
| 10 | Sapling | 7.0 | Free plan | $5/mo | Yes | — | — | — |
| 11 | AI Detector Pro | 6.8 | Free plan | Free | Yes | — | — | — |
| 12 | Polygraf AI Detector | 6.8 | Free plan | $9.95/mo | Yes | — | — | — |
| 13 | Turnitin AI Writing Detection | 6.7 | No | — | No | — | — | — |
| 14 | Undetectable AI | 6.7 | No | $0.42/mo | Yes | 9.99 /mo | — | — |
| 15 | Walter Writes AI | 6.6 | No | — | No | — | 30,000 words | — |
| 16 | Compilatio AI Detector | 6.5 | No | — | No | — | — | — |
| 17 | Smodin AI Detector | 6.4 | No | — | — | 10 /mo | — | — |
| 18 | UncovAI AI Detector Extension | 6.2 | Free plan | €9.99/mo | Yes | — | — | english_only |
| 19 | Airno | 6.1 | No | — | Yes | — | — | — |
| 20 | Detecto | 6.0 | No | — | Yes | 6.99 /mo | — | — |
| 21 | Trinka | 6.0 | Free plan | — | Yes | 20 /mo | — | — |
| 22 | AI Detect | 5.5 | No | — | Yes | — | — | — |
| 23 | TruthLens | 5.3 | Free plan | Free | Yes | — | — | — |
| 24 | Is It AI? | 5.2 | No | — | Yes | — | — | english_only |
| 25 | ClassGuard | 5.1 | No | — | No | — | — | — |
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which AI detection software is ranked first on Samsung Mobile US Press?
IA Checker is ranked #1 of 27 with a score of 8.5. Originality.ai is second and ZeroTrue third.
How many of these have a free plan?
14 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, ScribeLens has the lowest first paid tier we found: $0.04/mo.
How is this list ranked?
Ranked mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation. Paid placements never change a rank.